Attached is a snippet of an N event during an Io-C recorded Nov 13 2018 at
2040 UT. I pretty much use Dave's and Larry's method of tuning into where
the emissions appear on the spectrograph.? Sorry I don't have further
details at the moment.? Am away from my computer.? Tom in New Mexico

> Steve, Dave, All,
> Those using their SDR receiver with SDR Console, SDRc2RSS, and RSS can
> demodulate any frequency in its current spectrograph span. Demodulation
> can
> be selected as AM, CW, USB, LSB and even NBFM and wide band FM. The audio
> bandwidth will be limited to a normal audio variable bandwidth for a given
> mode selected. Usually 6 kHz SSB is an effective choice. With SDR Console
> the audio receiver demod frequency can be changed while watching the full
> bandwidth spectrogram on RSS. Just wait for an N event then tune the SDR
> Console receiver audio demod to the frequency the N event is covering. You
> can even follow it as the frequency changes. Have an audio recorder handy
> or record the sounds or to an audio file on your computer.
>
> One could do the same thing with two SDR receivers. One SDR displaying the
> spectrograph, another one to record demodulated sound to an audio recorder
> separately. Many combinations are possible. Experiment.
>
> Lastly, this would make a wonderful Radio JOVE Citizen Science project.
> The
> RJ files for SDR Console and SDRc2RSS are on the Radio JOVE WIKI page. To
> find the WIKI page look in the RJ? left hand toolbar of the Radio JOVE
> groups.io page. This could also be accomplished with the original Radio
> JOVE receiver and Radio Sky Pipe but it would be more difficult.
>
> Challenge: Who will be the first to record and document an N event sound?
> Larry
>
> _______________________
>
>
> On Tue, Mar 25, 2025 at 6:55?€?PM Dave Typinski via groups.io <davetyp=
> [email protected]> wrote:
>
>> I have no idea... but I speculate that it wouldn't sound like much of
>> anything
>> for the smooth L-type N events -- just a really gradual slight rise in
>> background noise and an equally slow decay as the N event slewed past
>> the
>> frequency channel being monitored.? For an N event made of a train of S
>> bursts,
>> it would probably sound like S bursts.
>>
>> Since N events are narrow band emission, the challenge is tuning a
>> single-freq
>> AM or SSB receiver to the appropriate freq where the N event exists --
>> when it
>> exists.
>>
>> That might be easier to do in real time with the SDRs using the
>> waterfall
>> spectrogram as a guide, but I don't know if their software can output
>> the
>> audio
>> (AM or SSB demodulation?) from a single FFT output channel when the SDR
>> is
>> operating at its widest coverage mode (8 or 10 or 16 MHz or whatever it
>> is).
>> --
>> Dave
>>
>>
>> On 3/24/25 23:14, Steve Chaters via groups.io wrote:
>> > Hello,
>> >
>> > I have learned that Jovian L bursts sounds like waves breaking on a
>> beach, and S
>> > bursts sound like popping corn.? But I have looked and no one seems to
>> talk
>> > about what N bursts sound like.....does anyone know?
>> >
>> > Cheers..........Steve
>> >
>>
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